The Bahco D-DD/S20 Impact Socket set has 10 deep and 10 standard 1/2in drive impact sockets. Made from high performance alloy steel with a black finish. To be used with machines. For maximum safety, use clamping springs. Comes in a case with a 2-component handle. DIN 3129, ISO 2725. Sizes include 10 x 1/2in Impact Sockets 10, 11, 12, 13, 14, 15, 16, 17, 18 and 19mm. 10 x 1/2in Deep Impact Sockets. 10, 11, 12, 13, 14, 15, 16, 17, 18 and 19mm.